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dc.creatorRajković, Miloš
dc.creatorVladisavljević, Goran
dc.creatorRistić, Nikola
dc.creatorJaksić, MM
dc.date.accessioned2020-12-17T17:38:20Z
dc.date.available2020-12-17T17:38:20Z
dc.date.issued1998
dc.identifier.issn0256-1654
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/141
dc.description.abstractOn the basis of an old Cominco, Trail. B.C., idea of preconditioning silver (0.8 wt%) alloyed lead electrodes for a proper passivation, optimal, chemically balanced and more economical process has been developed for use in Zn electrowinning. A relatively short time anodic polarization of Fb(As) electrodes in sulphuric acid containing fluoride ions, (as a stimulating agent for protective and compact layer formation of beta-PbO2), is found to give a compact, homogeneous, long lasting passivation layer of beta-PbO2. The presence of a small amount of F--ions in the passive layer of beta-PbO2 enables the passive oxide deposit to behave as long lasting, Monitoring of Pb-ions emission testifies that the preconditioned electrode will have more than ten years of life zinc electrowinning. An additional contribution is the exchanged chemical balance of manganese species in solution: the detrimental MnO2 production is dramatically reduced. The most important achievement of the process represents, winning of pure zinc.en
dc.publisherCentral Electrochem Res Inst, Karaikkudi
dc.rightsrestrictedAccess
dc.sourceBulletin of Electrochemistry
dc.subjectsilver alloyed lead electrodeen
dc.subjectpassivationen
dc.subjectpreconditioning processen
dc.subjectzinc electrowinningen
dc.subjectbeta-PbO2 protective coatingen
dc.titleA preconditioning process for extended passivation of alloyed lead anodes in zinc electrowinningen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage114
dc.citation.issue3
dc.citation.other14(3): 107-114
dc.citation.rankM23
dc.citation.spage107
dc.citation.volume14
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_agrospace_141
dc.identifier.scopus2-s2.0-0542372755
dc.identifier.wos000075865500003
dc.type.versionpublishedVersion


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